react-native ios Podfile 问题与“use_native_modules！”

react-native ios Podfile issue with "use_native_modules!"

提问by Cory Robinson

In my react-native project ([email protected]) in the ios/ dir I run pod installand get this error:

在我的 ios/ 目录中的 react-native 项目 ([email protected]) 中，我运行pod install并收到此错误：

[!] Invalid `Podfile` file: no implicit conversion of nil into String.

 #  from /Users/coryrobinson/projects/hhs2/ios/Podfile:37
 #  -------------------------------------------
 #  
 >    use_native_modules!
 #  end
 #  -------------------------------------------

I haven't added or changed anything in this Podfile - it's all react-native generated. (I'm not experienced in iOS dev so this might be a simple fix, I just don't know what to look for :-|) Thanks for any help!

我没有在这个 Podfile 中添加或改变任何东西——它都是 react-native 生成​​的。（我没有 iOS 开发经验，所以这可能是一个简单的修复，我只是不知道要寻找什么:-|) 感谢您的帮助！

Here is my Podfile

这是我的 Podfile

platform :ios, '9.0'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

target 'hhs2' do
  # Pods for hhs2
  pod 'React', :path => '../node_modules/react-native/'
  pod 'React-Core', :path => '../node_modules/react-native/React'
  pod 'React-DevSupport', :path => '../node_modules/react-native/React'
  pod 'React-fishhook', :path => '../node_modules/react-native/Libraries/fishhook'
  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
  pod 'React-RCTWebSocket', :path => '../node_modules/react-native/Libraries/WebSocket'
  pod 'RNFS', :path => '../node_modules/react-native-fs'

  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
  pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'

  target 'hhs2Tests' do
    inherit! :search_paths
    # Pods for testing
  end

  use_native_modules!
end

target 'hhs2-tvOS' do
  # Pods for hhs2-tvOS

  target 'hhs2-tvOSTests' do
    inherit! :search_paths
    # Pods for testing
  end

end

回答by Meabed

Here is the correct answer:

以下是正确答案：

1 - Your POD File should contain this line on top

1 - 您的 POD 文件应在顶部包含此行

require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

2 - Make sure your package.jsonand node_modulefolders has this module installed

2 - 确保您的package.json和node_module文件夹已安装此模块

cli-platform-ios/native_modules

cli-platform-ios/native_modules

3 - If you didn't find after you run yarn install- means you have old cache node_modules in your machine and you need to clean it before reinstalling the package again.

3 - 如果你在运行后没有找到yarn install- 意味着你的机器中有旧的缓存 node_modules，你需要在重新安装包之前清理它。

4 - Clean cache yarn cache clean

4 - 清理缓存 yarn cache clean

5 - Make sure you have this file react-native.config.jsand its configuration is VALID - and it doesn't have non-existing NPM packages - this step is LAST AND MOSTLY THE CAUSE of the error

5 - 确保你有这个文件react-native.config.js并且它的配置是有效的 - 并且它没有不存在的 NPM 包 - 这一步是最后，也是导致错误的主要原因

Example of my react-native.config.js

我的例子 react-native.config.js

module.exports = {
  project: {
    ios: {},
    android: {},
  },
  assets: ['./assets/fonts/'],
  dependencies: {}, // make sure this dependencies are all valid installed packages or empty if you don't need it
};

6 - Install node packages yarn installand your pods should work now! pod install --repo-update

6 - 安装节点包yarn install，你的 pod 现在应该可以工作了！pod install --repo-update

HAPPY coding!

快乐编码！

回答by MoOx

If you are using

如果您正在使用

pod install --project-directory=ios

you might need to tweak the Podfile by replacing

您可能需要通过替换来调整 Podfile

use_native_modules!

use_native_modules!

to

到

use_native_modules!(".")

use_native_modules!(".")

Maybe this behavior will be improved in the future, I opened an issue about it https://github.com/react-native-community/cli/issues/657

也许这种行为将来会得到改善，我打开了一个关于它的问题https://github.com/react-native-community/cli/issues/657

回答by Vitor Lopes

Downgraded @react-native-community/cli-platform-ios from 3.1.0 to 3.0.0 and it worked.

将@react-native-community/cli-platform-ios 从 3.1.0 降级到 3.0.0 并且它起作用了。

Added

添加

"@react-native-community/cli-platform-ios": "3.0.0"

to package.json.

到 package.json。

Run npm install and then pod install to get it working again.

运行 npm install 然后 pod install 让它再次工作。

回答by ToniG

i just dropped the whole node_modules and RN cache folder and did a clean reinstall, this fixed the "use_native_modules" problem so far....but after that i had to hassle a lot with other libs which where just not RN0.60 ready ;)

我刚刚删除了整个 node_modules 和 RN 缓存文件夹并重新安装，这解决了到目前为止的“use_native_modules”问题...... )

回答by Naveen Raju

For me, I deleted the node_modulesand installed again by using npm install. After that, I navigated to /iosfolder and ran pod installit worked.

对我来说，我删除了node_modules并使用npm install. 之后，我导航到/ios文件夹并运行pod install它。

回答by jsina

this is because the outdate yarn version on your device, if you on macOS you can upgrade/install the yarn with follow this link: here it is

这是因为您设备上的纱线版本过时，如果您在 macOS 上，您可以按照以下链接升级/安装纱线： 这里是

be awareto delete node-moduleand yarn.lockfile, install all packages again, navigate to iosfolder and run pod install.

请注意删除node-module和yarn.lock归档，再次安装所有软件包，导航到ios文件夹并运行pod install.

回答by B. Mohammad

Verify if you have @react-native-community/cli-platform-iosin your package.json,

设备是否已经 @react-native-community/cli-platform-ios在你的package.json，

if you dont run:

如果你不运行：

npm install @react-native-community/cli-platform-ios

npm install @react-native-community/cli-platform-ios

then

然后

cd ios && pod install

cd ios && pod install

回答by cheesus

I got this error after I tried to react-native run-iosan Expo app. The error I got indicated that something was wrong with the Pods, so I ran cd ios && pod install, which is how I got a similar error as the OP.

尝试react-native run-ios使用 Expo 应用程序后出现此错误。我得到的错误表明 Pod 有问题，所以我跑了cd ios && pod install，这就是我遇到与 OP 类似的错误的原因。

In that case, you obviously need to expo startinstead of react-native run-ios.

在这种情况下，您显然需要expo start代替react-native run-ios.

回答by Matthew Gruman

This started happening out of the blue today, and the problem was a space in my directory structure. Ex:

今天突然开始发生这种情况，问题是我的目录结构中有一个空格。前任：

/path/to/Directory\ Name/RNProject throws the !native_modules error /path/to/DirectoryName/RNProject works as it should

/path/to/Directory\ Name/RNProject 抛出 !native_modules 错误 /path/to/DirectoryName/RNProject 正常工作

Pods was looking for "Directory. "

Pods 正在寻找“目录”。

回答by Tyler Agnew

Does anyone have a consistently recreatable solution for this issue that does not revolve around getting rid of use_native_modules? I have looked into:

有没有人对这个问题有一个始终如一的可重新创建的解决方案，而不是围绕摆脱 use_native_modules？我调查过：

• Changing Ruby Version
• Changing CocoaPods version
• Invalidating NPM and Cocoapods cache

• 更改 Ruby 版本
• 更改 CocoaPods 版本
• 使 NPM 和 Cocoapods 缓存失效

And I am unable to fix the issue. It appears to be some npm dependency, but others on my team are not seeing it.

我无法解决这个问题。它似乎是一些 npm 依赖项，但我团队中的其他人没有看到它。